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Investment in Qualified Affordable Housing Investment in Qualified Affordable Housing (Tables) | 12 Months Ended
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Dec. 31, 2017
Schedule of Equity Method Investments [Line Items] |
Equity Method Investments [Table Text Block] | The table below details the balances of Park’s affordable housing tax credit investments and related unfunded commitments as of December 31, 2017 and 2016.
(In thousands) |  | December 31, 2017 | December 31, 2016
Affordable housing tax credit investments |  | $ | 49,669 |  | $ | 52,947 |
Unfunded commitments |  | 14,282 |  | 14,282 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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